Vial forming machine



Dec. 24, 1940. J. DlcH'rER VIAL FORMING MACHINE 1938 g 2 sheets-sheet 1Filed June 21 VIAL FORMING MACHINE Filed June 21, 1938 v zsneets-sneet 2JOJ'C ob @D Patented Dec. 24, 1940 e lQazzfsos vmLoaMiNG Machine Y JakobDichter, Berlin-Schoneberg, Germany f Application :une z1,1sss`seria1Naf/215,008] v AIn(rcrlnamr-uly1*,19v3'l a sciame. ,l (01.49-22) 'i'I'he prent invention relates to glass shaping apparatus and moreparticularly to a machine in which the closed ends of glass receptaclesare reformed rby forcing the heated closed portion 5 against molds.

The improvement over known machines con-- sists in a suitable mechanismfor moving the glass receptacle into engagement with the mold and in thenovel construction ofthe latter. One of the o objects of the inventionis` to vprovide mechanism for manipulating J receptaclerv bodies which'are subdivided by melting into two portions, each of which is closed atone endiand after being subsequently heated for -re-formlng, are ,movedAto a l re-forming station'in such manner that thevopen ends oi thereceptacles are connected with blower s heads. The-blower heads,together with-the re-k ceptacleafare then moved with respect to thefre-2 ceptaclefsupporting means, i comprising rollers,

disposed above and vopposite the supporting rollers exert acontinuouspressure on the receptacle and are so arranged that theyv urgethe recepta-V head. A.rm and accurate cooperationlof the 30 thereceptacle opening, and close itting ofv the,

receptacle in the mouth of the blower" heady is also further increasedby the "axial pressureimposed on the receptacle by theiuppercounter-rollers. When the liiov.l r head is moved away from thereceptacle after the bottom of the receptacle has been shaped, the twoupper traction rollers move the glass receptacle away from the mold, theresistance of the blower head having been removed.

As shown on the drawings,itheapparatus" for simultaneously moving theblower head and the ports is so constructed that the receptacles aremoved axially into cooperation with the center of the blower head, sothat the head vis engaged a and rotated bythe positively rotatedreceptacle. An adjusting mechanism is .providedjby means ofwhich theblower heads and the receptacleare moved a predetermineddistance intoengagement with the bottoming mold. y y 50 It is another object of theinvention to provide a bottoming mold for simultaneously `shaping vtwoclosed tube halves, the moldbeing so disposed in a support thatthebbottoming parts are easily interchangeable. In order to` avoid eX-6,6. cess heating and resultant sticking oitthe mold into engagementvwith themoldm Other .rollersj cle axially relatively to and toward theblowery glass receptacles with respect to the rollerfsup'- cooled,r vthesupportffor the mold Aplates lbeing cooled byforcing therethrough airVor othercooljf. ing agent, so that the mold supportvco'nducts heat fromlthe mold plates. 'I'he mold plates are so constructed that"` they may`rconsist i either of, two

Vplates connectedby ya web which areinserted as a .unit and 'retained inthe support, onthey may be separate plates adapted tobe"inse'rte'dyinazii-4 vidually in the 4support.,r Thebottoni",platesfare lq furthermore adjustable vertically with respect`to the glass receptacle, and areso rarrangedthatthey may also beadjusted axially'with respectvtothe receptacle. Y y 15 It is a furtherobject of the` invention toprovide means fonfmolding ythe side wallY ofthereceptacle. l 5 e As shown on the drawingathe side molds'co'n. sistof rollers hfvingthe :same axial relation and diameter as thebearingrollers which.rotatev the 2.0 glass tubularmember. lWhen ysuch a moldis, employed, the bottomwplates should .not have aidiameter greaterthanthat of the glass receptacle being shaped.v A t f, 25

In order to be able to bottom receptacles of different diameter with,the same mold plate, the diameter of the plateis preferably greaterythan that of the glass blank to be shaped, kandthat portion of thebottoming plate which engages the` 30 side mold roller is ilatipenedgV-y y vStill another object of thev invention.. is to so yform thecontactsurface of rth'ebotte'm'iing plate that it is interrupted'l for example,byrecesses or grooves. This form of mold plate isparticularlyadvantageous Since it reduces the surface contact with theglass and permits .air to escape, thus producing a smoother and moreevenfbottom, in contrast.. to one which is shaped by a continuoussurface. I l l 40 It is also, an object of theinvention to form letters,decorations, or other markings on the side wall of thereceptaclewhilethe Abottom vthereof is being shaped. For this purpose, ak mold,preferably in the formyof` a rolleryand bearing periph:- 45 eral `dieserothermarkings,v is urged against the glass, so that, whenain isblowninto the receptacle, the wall assumes the forniv of the markings onthe roller. vThe markings can beprovlded on the roller either inreliefkor intaglio. Theroller' 50 moldprovided with markings should havea predetermined ratio to the diameter of 'the receptacle, so that theperiphery `of the'roller mold is developed on the receptacle when air isforced into the receptacle; The inscription may be 55 ns-iesimultaneously with the bottom shaping operation or independentlythereof as a separate cp 'ative step. By so proportioning the diame- 1ters of the mold and receptacle, continued rotas tion of the impressionmold will not aifect registration of the die with the part of thereceptacle to be provided with the impression. If desired, theimpression roller may be provided with markings which have a contactsurface apl proximating a straight line. Consequently, the periphery ofthe roller mold is a multiple of the receptacle circumference and isthus provided with as many markings as the multiple, so that themarkings are developed in the reshaping of l the receptacle.

'I'he mold roller provided with the markings may be extended on one orboth sides 'of the impression so as to act as a lateral supportingmember; or the roller may contain only the impression, in which casethere may be provided an cppositely positioned roller supporting thewall of the blank on both sides of the impression, said supportingroller having a reduced diameter opillustrated inthe accompanyingdrawings, iny

which:

Fig. 1 is a front elevation of the means for moving the blower head andillustrating the relative .positions of the bottom mold plate supportand the blower heads;

Fig. 2 is a plan view of thev machine shown in ng. 1; K

Fig. 3 is a side elevation of the'machine: Fig. 4 is a side elevation ofthe mold support; Fig. 6 is a fragmentaryV side elevation of a botl tomplate and one of the rollers supporting the u side walls: f

Fig. 6 is av side elevation of a modified form of mold plate;

Figs. 7 and 8 are plan views oi.' the plates shown 5 in Figs. 5 and 6;

Fig. ill illustrates the manner in which two opposite bottom plates aresecured to the support;

Fig. 10 is a side elevation of a mold roller providedy with markings andwhich is larger than the glass receptacle:

Fig. 11 is a front elevation of a mold roller driven by a frictionroller;

Fig. 12 illustrates a mold roller having the same diameter as the glassreceptacle;

o Fig. 13 is a side elevation of mechanism for urging the mold rolleragainst the glass blank: and

Fig. 14 is a front elevation of the mechanism shown in Fig. 13.

as In the drawings there is illustrated only that part of the machinedesigned to bottom the reoeptacle, the invention being adapted not onlyto reshaping apparatus of the type in which the glass tube sections ofdouble length are prelim- '70 manly subdivided by mel-ang into twonaiven. but

" also where single blanks are shaped, or in apparatus where the blankspass through several other melting stations and nnally to the bottomingmechanism, as shown on the drawings.

"i5 Mounted on the frame 2i, in bearings 2l, are

shafts 23 to which are fastened discs 22 providing a rotatable supportand adapted to rotate the glass blanks 21, 21. Disposed above the blanksare counter-pressure rollers Il, Il', which are skewed or mountedobliquely to the axis of the l blanks so that they exert a pressure onthe blanks axially thereof in the direction toward blower heads ill,iii', respectively. These rollers I8, 38' are mounted inthe customarymanner in supporting arms 3 0, Il andare adapted i0 to be raised andlowered.

The means for raising and lowering the skew rollers comprises cam 2lhaving engagement with bell-crank lever 29, the latter being connectedby link Il with a second bell-crank lever 20', both l5 levers beingfulcrumed on the machine frame as at Ii, Il'. The levers are alsoconnected to cross-member I2 forming a support for the lower/ ends ofrods Il reciprocable in guides 34 and to which arms Il are adjustablyconnected. It will, 2

therefore, be seen that the rods 38 and arms 3| are `periodicallyelevated and lowered to alternately disengage and engage theglassblanks.

'I'he blower heads are rotatable about the open ends of conduits |02,|02', and, when the open 25 ends of the blanks are brought intoengagement with the heads, are rotated by the blanks. The blower headsilii, IBI' have packed connections with the conduits |02, |02'. 'I'helatter are connected through passages lill, |03 with an air 3 supplycontrolled-bya cam-actuated valve I 84, through which the air isadmitted at predetermined periods into the blank.

Each conduit member ill. ill' carrying a blower head is attached to ablock ill which, in 35 turn, is attached to a supporting rod I threadedat the upper end and slidable in guide |01, vertical adjustment of therod being possible by turning threaded sleeve |08 which cooperates withthe threaded end of the rod. Each rod i 0 is adapted to be movedlaterally by a lever Il! which is slidabiy connected to a pin H0. Eachguide lll has two bearings, indicated at Iii, iii', lil, H2', slidablymounted on rods ill and lil, the latter being dentated to form rackteeth at 4l one end thereon-The rack portions oi' rods H3, lil mesh witha gear lil which, through a camactuated rod mechanism ill, is adapted tobe osciilated so that it actuates both rods il), lil, but, since theracks are on Ldiametrically oppo- 5 site sides of the gear, the rods arereciprocated in opposite directions. Bearing iii is connected with anarm Ii1 by means of a threaded member I i'. to provide for adjustment ofthe distance between the arm and bearing. Likewise, vbearing u iii isconnected with the lever.i i1' in a similar manner by means of athreaded member ill. Lever iii is secured to rod lil, while bearing iiiis adapted to slide on rod i I3, and bearing iii is attached by means or1ever m' toma m. '0

Bearings H2, III' serve as guides when the two rods ill, Ill are movedin opposite directions by the gear ill, it being obvious, as shown inFig. 2, that blower head |02' is moved to the right and head Il! ismoved to the left. Also, as shown in u Fig. 2, rod Ill is moved in thedirection of the arrow by means of`a traction spring ill, and is movedin the opposite direction by cam i il, shown in Fig. 3, through leverill. Movement of the guide rods Il), iM and blower heads lli, 7 lli'from the open receptacle mouth, is regulated by means of screw i2i onrod ill and engageable with the frame of the machine so that theseblower heads can be brought into line with abutments m limiting theposition or the re- 'l ing flames.

ceptacie mouths and which abutments, on passage ofthe receptaclesthrough the machine, hold them in proper position with `-respect ,to`the heat- As shownwin Figs. 5 and 7, the mold plates 4|, 4I arepreferably connected by a web 42 andthe face of each plate provided withrecesses 48 to permit limited engagement of the blank and shaping facesof the plates. thus reducing surface contact between the blank andplates and also permitting the escape of air from the plate' face duringthe shaping operation. The connected plates are mounted in support 44,as indicated in'Fig. 4, the latter beingcooled by the passage of airforced through passage 45 therein. The bottom plates andthe support areadjustable vertically by means of a lever 48 pivoted to lthe frame at 41and connectedat one end to the support as at 48. The other end of thelever is connected to nut 48 threadedly to engage bolt I0 fixed to theframe.

Itis to be noted that the periphery of the mold plates is flattened asat 8| when the mold lies in the same plane as one of supporting discs22. The purpose of this will be explained hereinafter.

In Figs. 6 and 8, another form of connected bottoming plate is shown. Inthis type oi' plate, the shaping faces are smooth and convex, but theperiphery is flattened at opposite sides to provide for limitedengagement of the blank and plate so as to reduce surface contact anddiminish heat transfer to the plate.

Fig. 9 illustrates a pair of separate bottoming plates 52, I2', eachthreaded and adapted to be screwed into support 44.

In Fig. 10'there is shown a roller mold 53 supv ported on a verticallyswingable arm 84 and having on its periphery a plurality of dies l5adapted to impress decorations or lettering on the side wall of theblank 21 while thek latter is heated. In the drawings, the impressionroller has a diameter which is a multiple of the diameter .of

the blank, in the form illustrated being three times as great. Thereare, therefore, three impression dies so spaced that, regardless of thenumber of rotations of the die roller, the respective impressions madeon the wall of the blank will all register. These impressions may beeither relief or intaglio.

Fig. l1 shows one method of rotating the iin-'- pression roll. Here theimpression roll is secured to shaft 58 to which is also secured afriction disc 51 having a diameter equal to that of roll 58 and adaptedto be rotated by engagement thereof with the blank. It is to be notedthat a supporting roll is provided-opposite the impression roll,

the supporting roll having a reduced diameter or groove 58 so as not toengage that portion of the blank engaged by theimpression roll. kIf theperipheral surface of the rotary mold is adjacent the end of the vial,the supporting roller extends axially beyond the end ofthe vial, inwhich case the bottom mold is flattened at Il as shown in Fig. 5. Y

In Fig. 12 there is shown a modified form of impression roll 53' havinga diameter equal to that of the blank. .Here the impression rollreceives its rotation from the rotating blank.

The means for lifting the impression roll are shown in Figs. 13 and 14.The roll is journaled at one end of arm 54, the other end of which isfast on shaft supported in a bearing forming part of bracket 4|.Normally arm 54 is urged downwardly by spring 82, but is limited in itsmovement by adjustable stop 68 engaging finger is heated it is movedkaxially against the sottomring plates and, if desired, the impressionroller v for supplying air to said head while the vial is 84 on collar65 secured to shaft 68. Bracket 6l is slidably mounted. for..verticalreciprocation in guide 88 on the machine frame and at predeterminedperiodsisf'elevated'by'cam 81 acting on lever 6,8 having connection'with the bracket. 6

Upon elevation of the bracket, the impression roll is :f moved out ofengagement-with the blank.

From the foregoing description of the invention it will be obvious thatwhen the glass blank is brought into molding relation with the blank `sothat the roller forms markings in the side wallof the blank. Air is thenforced into the blanks through the blower heads to insure full 'contactof those portions of the blank to be bottomed, a bottoming mold plate,said plate comprising a circular disc having a portion of its peripheryflattened, a .rotary mold for shaping 30v the side wall of the vialadjacent the bottom( of the vial, said supporting means being injuxtaposed relation to said flattened portion, a head adapted to nt overone open end of the vial to be bottomed, meansfor supplying air tosaidr35 head, and means for moving said head in the direction of saidmold plate to urge the other end of the vial into engagement with'saidplate thereby to bottom the vial. f l i 2. Apparatus of the classdescribed, comprising means for supporting and rotating a vial tobebottomed, a bottoming mold plate, saidy plate comprising a disc havinga shapingsurface provided with ay plurality of Vrecesses in the facethereof, a head adapted to fit over one openend of the vial to bebottomed, means formoving said head in the direction of said mold plateto urge the other end of the vial into engagement with said platethereby to bottom the vial, and means in engagement with said moldplate.

3. Apparatus of the class described, comprising means for supporting apair of vials to be bottomed in axial alignment, a pair of spacedaxially aligned blower heads adapted to t over the open ends of thevials, a bottoming mold disposed between the vials, said mold comprisingtwo oppositely disposed' mold plates and a support therefor, means forsimultaneously moving said heads in thedirection of said mold thereby tobottom the vials including a Vpair of parallel reciprocable rods, meansfor'simultaneously moving said rods in opposite directions, and meansfor supplying air to said heads while the vials are in engagement withsaid mold plate'.

4. Apparatus of the class described, comprising means for supporting androtating a vial to be bottomed, a bottoming mold plate, a rotary mold in`contiguous relation to said mold plate for shaping the side wall of thevial, a head 7 adapted to fit over one open end of the vial to bebottomed, means for moving said rotary mold into engagement with thevial and simultaneously moving said head in the directiony of said moldplate to urge the other end of the vial into 7|y engagement with saidplate thereby to bottom the vial, and means for supplying air to saidhead while the vial is in engagement with said mold plate.

5. Apparatus of the class described, comprising means for supporting avial to be bottomed, a blower head adapted to nt over the open end ofthe vial. means for supplying air to said blower head, valve meansadapted to control the admission of air to said air supplying means, abottoming mo1d,'means for moving said blower head to urge the bottom endof the vial into engagement with the mold, and cam means for actuatingsaid head moving means and valve in timed relation.

JAKOB 'DICH'I'ER

